Efficient yellow-light generation based on a Q-switched frequency-doubled self-Raman laser

Efficient 588-nm yellow laser with high pulse energy and peak power is generated based on an intracavity frequency doubled Q-switched Nd:YVO 4 self-Raman laser. The cavity is elaborately designed to ensure high conversion efficiencies in both Raman and second harmonic generation processes, and meanwhile mitigate the thermal load deposited in gain medium so as to help improve power scalability. At the pulse repetition frequency of 60 kHz, 6.33 W of 588-nm yellow output is obtained under 30.3-W incident pump. The pulse energy of 167 μJ and peak power of 33.4 kW are also obtained at 30 kHz.